r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f00000005c0)='ns\x00')
r1 = dup(r0)
openat(r1, &(0x7f0000000000)='./mnt\x00', 0x0, 0x0)
mkdirat(r1, &(0x7f0000000200)='./mnt\x00', 0x0)